1. Pushing the Controller inside button 8 or 9 times then holding it down until both lights flash, puts the system in override. That just means the ONLY current going to each motor is the 12 volt positive and Negative. The counter system is removed from operation. IF both motors or just one operates in this mode, that means the wiring is probably open or shorted. If not wiring, you have a bad motor
2. With the controller motor wire harness disconnected from the controller, 3 or 4 people can manually push the room in or out. Unless you have a locked up motor.
3. If the room is extended when it failed, then you can easily get to either motor to remove to push the room in
4. If the room is retracted, it is impossible to remove the motors, without getting the room to extend 3 or 4 inches to remove the motor retaining screw.
5. If some idiot has worked on the system before and did NOT use the correct 1/2 inch motor retainer screw and use just any longer than 1 inch screw to retain the motor, then you may have to use a air chisel to get the motor out when room fails retracted. We just had this happen at our shop. the idiot used a long screw previously and after awhile that screw shorted out the armature in the motor. Doug